Subband Comfort Noise Insertion for an Acoustic Echo Suppressor

Shi G, Ma C. Subband Comfort Noise Insertion for an Acoustic Echo Suppressor. In: AES Convention 133. Audio Engineering Society; 2012. Paper 8787. Available from: https://aes.org/publications/elibrary-page/?id=16529

@inproceedings{Shi2012_16529,
  author = {Shi, Guangji and Ma, Changxue},
  title = {{Subband Comfort Noise Insertion for an Acoustic Echo Suppressor}},
  booktitle = {AES Convention 133},
  note = {Paper 8787},
  year = {2012},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16529}
}

TY  - CPAPER
TI  - Subband Comfort Noise Insertion for an Acoustic Echo Suppressor
AU  - Shi, Guangji
AU  - Ma, Changxue
T2  - AES Convention 133
M1  - Paper 8787
PY  - 2012
DA  - 2012/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16529
PB  - Audio Engineering Society
LA  - en
AB  - This paper presents an efficient approach for comfort noise insertion for an acoustic echo suppressor. Acoustic echo suppression causes frequent noise level change in noisy environments. The proposed algorithm estimates the noise level for each frequency band using a minimum variance based noise estimator, and generates comfort noise based on the estimated noise level and a random phase generator. Tests show that the proposed comfort noise insertion algorithm is able to insert an appropriate level of comfort noise that matches the background noise characteristics in an efficient manner.
ER  -